667 SEVERE DISCONTINUITIES OCCURRED DURING THIS ITERATION.
667 POINTS CHANGED FROM CLOSED TO OPEN
I think this is causing the problem, after the slip, which makes average forces NaN
If I do the simulation in one SOILS step the problem statement is this:
The simulation first involves a quasi static regime, where the contact is at rest (stick). The solver takes large time increment size for this part (which I have limited by prescribing 1000 seconds as the maximum increment...
The problem is I have a quasi static fluid diffusion regime before the sudden slip of the surfaces (like nucleation) takes place and after the slip comes to arrest there is again quasi static sticking phase. I have tried defining different steps *soils followed by *dynamic,implicit and then...
How to stabilize an unstable quasi static problem that includes contact. I am modelling a stick slip frictional behavior using FRIC user subroutine. The problem encounters instability while slipping, it has large number nodes taking part in the contact. Later, I have applied * CONTACT CONTROL...
